292 . Bulletin 145. 



are less attacked than such varieties as Anjou, Lawrence, Duchess, 

 Clairgeau, Sheldon, Seckel, Summer Doyenne, Flemish Beauty and 

 Jones. On Seckel, Flemish Beauty and Summer Doyenne I have 

 found it very abundant during the past two years. In a list of about 

 24 varieties given by Beach in Bulletin 84 of the N. Y. State Exp. Sta. 

 we find none other than the three mentioned included among those 

 only slightly attacked. 



4. Remedies. 



Since we may assume that this fungus lives over winter in the young 

 branches or diseased fruit, it is quite evident that there is all the more 

 reason for beginning any work of prevention at the earliest time expe- 

 dient. Fairchild found that before the flower buds open the young 

 scab spots may appear upon them. It is very important to prevent 

 the early establishment of the disease ; for once having secured a 

 foothold, spores are rapidly produced and dissemination is very rapid 

 during seasons favorable for the disease. 



For the prevention of this fungus, many experiments have been 

 made at various stations with the different fungicides. During the 

 past few years special attention has been given to pear scab at the 

 Geneva Station in New York. The final results are not at all discord- 

 ant with those of other stations, and recommendations are made some- 

 what accordingly. Spray three times with Bordeaux mixture of the 

 50 gallon strength.* The first spraying should be made before blos- 

 soming, but after the fruit buds burst ; the second, immediately after 

 the petals fall ; and the third, about two weeks after the second. 



References to Literature. 



Aderhold, Rudolph. — Die Fusicladien unserer Obstbaume, I Teil. 

 Landwirthschaftliche Jahrbiicher 25 ; 875-914; 1895; pi. XXIX.- 

 XXXI. 



Arthur, J. C. — Leaf Blight and Pear Scab. Report N. Y. State Experi- 

 ment Station, Geneva, 1884, 367-368. 



Bailey. — L. H. Fusicladimn pirinutn. Bulletin XIX., Cornell University 

 Experiment Station, Ithaca, N. Y., 1890, pp. 49 and 52. 



See page 288. Beach recommends the 66-gallon formula. 



